In the east, it extends through Rakinyoma Mountains of Myanmar towards the island arc along the Java Trench.

22

c

23

c

24

c

25

c

26

c

27

c

28

c

29

b

Density is highest near the surface of the earth and decreases with increasing altitude.

30

c

31

b

Conduction is important in heating the lower layers of the atmosphere.

32

a

There is a surplus of net radiation balance between 40 degrees north and south and the regions near the poles have a deficit.

33

c

34

c

35

b

The air at the Inter Tropical Convergence Zone (ITCZ) rises because of convection caused by high insolation and a low pressure is created.

36

a

If an air mass is fully lifted above the land surface, it is called the occluded front.

37

c

38

c

39

c

40

c

41

a

Seamount is a mountain with pointed summits, rising from the seafloor that does not reach the surface of the ocean.

42

c

43

c

44

c

45

c

The mixing of warm and cold currents help to replenish the oxygen and favour the growth of planktons, the primary food for fish population. The primary forces that influence the currents are: (i) heating by solar energy; (ii) wind; (iii) gravity; (iv) coriolis force.